X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altosui%2FAltosConfigTD.java;h=9020ed9ddc874f0d652c39aa491a74b641c2ceb2;hp=4389e49b0c57ac431512a5544b3243441390afa0;hb=e70f3dca01b15b75b0b8795eb71bd12817af4800;hpb=95f3a2825377bdb6737446df051c069d58f42d08

diff --git a/altosui/AltosConfigTD.java b/altosui/AltosConfigTD.java
index 4389e49b..9020ed9d 100644
--- a/altosui/AltosConfigTD.java
+++ b/altosui/AltosConfigTD.java
@@ -223,8 +223,10 @@ public class AltosConfigTD implements ActionListener {
 					if (!config_version.get().equals("0.0"))
 						break;
 					been_there = true;
-					config.serial_line.printf("C\n ");
-					config.serial_line.flush_input();
+					if (config != null && config.serial_line != null) {
+						config.serial_line.printf("C\n ");
+						config.serial_line.flush_input();
+					}
 				}
 			} catch (InterruptedException ie) {
 			}
@@ -277,8 +279,10 @@ public class AltosConfigTD implements ActionListener {
 	}
 
 	void abort() {
-		serial_line.close();
-		serial_line = null;
+		if (serial_line != null) {
+			serial_line.close();
+			serial_line = null;
+		}
 		JOptionPane.showMessageDialog(owner,
 					      String.format("Connection to \"%s\" failed",
 							    device.toShortString()),